How To Fix ESH_ADM_MSG153 - System is connected to hub &1 -> Disconnect the system

SAP Error Message - Details

• Message type: E = Error

• Message class: ESH_ADM_MSG - ESH Administration and Monitoring Tool

• Message number: 153

• Message text: System is connected to hub &1 -> Disconnect the system

What causes this issue?

The system is connected to a hub.

System Response

You cannot delete any search connectors while the system is connected to
a hub.

How to fix this error?

Disconnect the system from the hub. This must be executed from the hub.

Procedure for System Administrators

The system issues an error message and will not allow you to continue with this transaction until the error is resolved.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message ESH_ADM_MSG153 - System is connected to hub &1 -> Disconnect the system ?

  The SAP error message ESH_ADM_MSG153 indicates that the system is connected to a hub system, and it requires disconnection from that hub. This message typically arises in the context of SAP Enterprise Search or SAP HANA systems that are configured to work with a hub-and-spoke architecture.
  Cause:
  The error occurs when:
  
  The system is currently connected to a hub system (like a central search hub) and is not allowed to perform certain operations until it is disconnected.
  There may be configuration issues or incorrect settings in the system that prevent it from functioning properly while connected to the hub.
  
  Solution:
  To resolve this error, you can follow these steps:
  
  
  Disconnect from the Hub:
  
  Go to the relevant configuration settings in your SAP system.
  Navigate to the settings for the Enterprise Search or the specific application that is generating the error.
  Look for an option to disconnect from the hub system. This may involve changing settings in the system configuration or using transaction codes related to the specific application.
  
  
  
  Check Configuration:
  
  Ensure that the system is correctly configured to either connect to the hub or operate independently.
  Review the settings in transaction codes like EHS_ADMIN or EHS_SEARCH (depending on your version and setup) to verify the connection status.
  
  
  
  Restart Services:
  
  After making changes, it may be necessary to restart relevant services or the entire system to ensure that the changes take effect.
  
  
  
  Consult Documentation:
  
  Refer to the official SAP documentation for your specific version and module to understand the implications of connecting to a hub and the steps required to disconnect.
  
  
  
  Contact SAP Support:
  
  If the issue persists after attempting the above solutions, consider reaching out to SAP support for further assistance. They can provide guidance based on the specific configuration and version of your SAP system.
  
  
  
  Related Information:
  
  Hub-and-Spoke Architecture: This is a common architecture in SAP systems where a central hub manages data and services for multiple connected systems (spokes). Understanding this architecture can help in troubleshooting connectivity issues.
  SAP Notes: Check for any relevant SAP Notes that might address this specific error or provide additional troubleshooting steps.
  System Logs: Review system logs (transaction SLG1) for any additional error messages or warnings that could provide more context about the issue.
  
  By following these steps, you should be able to resolve the ESH_ADM_MSG153 error and restore normal functionality to your SAP system.